Is it possible to have a shader effect a specific area of a texture?
The Mix Shader can blend between two shaders. You can specify the area by a mask which is usually a black and white or a grayscale image. You can see on the right side you have to plug the mask to the &quot;Fac&quot; socket. The base shader (it's principled in my case but it can be anything) into the middle and the Emission into the last. The mask is the black and white umbrella in the UV editor. You have to make a black and white image about your texture or you can use your base color with a ColorRamp node.